Well I have the dual 25-31CS+ setup in my home theater room. Here is what I plan on doing now. After having all that bass in one localized room I've decided to expand. It's tough listening to music that is based in a room in the far corner of the house and enjoy it. As I speak I have 4 Tempests in back of my SUV which is very loud(150's db). I just upgraded to 2 Brahma's so I can save space and still use the 2400watts(2 JBL1200). I'm planning on making 2 duel sonotubes for the living room. I've ported enough boxes in car audio to know what I'm doing with the woodworking/freq port. Although sonotubing is something I've never done. I want to see if it is possible to equal or surpass a SVS. I may just build rectangle boxes and hide them behind the entertainment center. After all it's not the type of box it's all in the volume/port. Either way I will be sure to have a review.